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* [pull request][net 00/13] mlx5 fixes 2020-05-22
@ 2020-05-23  0:40 Saeed Mahameed
  2020-05-23  0:40 ` [net 01/13] net/mlx5: Add command entry handling completion Saeed Mahameed
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Saeed Mahameed

Hi Dave,

This series introduces some fixes to mlx5 driver.

Please pull and let me know if there is any problem.

For -stable v4.13
   ('net/mlx5: Add command entry handling completion')

For -stable v5.2
   ('net/mlx5: Fix error flow in case of function_setup failure')
   ('net/mlx5: Fix memory leak in mlx5_events_init')

For -stable v5.3
   ('net/mlx5e: Update netdev txq on completions during closure')
   ('net/mlx5e: kTLS, Destroy key object after destroying the TIS')
   ('net/mlx5e: Fix inner tirs handling')

For -stable v5.6
   ('net/mlx5: Fix cleaning unmanaged flow tables')
   ('net/mlx5: Fix a race when moving command interface to events mode')

Thanks,
Saeed.

---
The following changes since commit 5a730153984dd13f82ffae93d7170d76eba204e9:

  net: sun: fix missing release regions in cas_init_one(). (2020-05-22 16:19:46 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git tags/mlx5-fixes-2020-05-22

for you to fetch changes up to 4f7400d5cbaef676e00cdffb0565bf731c6bb09e:

  net/mlx5: Fix error flow in case of function_setup failure (2020-05-22 17:28:58 -0700)

----------------------------------------------------------------
mlx5-fixes-2020-05-22

----------------------------------------------------------------
Eran Ben Elisha (2):
      net/mlx5: Fix a race when moving command interface to events mode
      net/mlx5: Avoid processing commands before cmdif is ready

Maor Dickman (1):
      net/mlx5e: Fix allowed tc redirect merged eswitch offload cases

Moshe Shemesh (3):
      net/mlx5: Add command entry handling completion
      net/mlx5: Fix memory leak in mlx5_events_init
      net/mlx5e: Update netdev txq on completions during closure

Roi Dayan (5):
      net/mlx5e: Fix inner tirs handling
      net/mlx5: Fix cleaning unmanaged flow tables
      net/mlx5: Don't maintain a case of del_sw_func being null
      net/mlx5: Annotate mutex destroy for root ns
      net/mlx5e: CT: Correctly get flow rule

Shay Drory (1):
      net/mlx5: Fix error flow in case of function_setup failure

Tariq Toukan (1):
      net/mlx5e: kTLS, Destroy key object after destroying the TIS

 drivers/net/ethernet/mellanox/mlx5/core/cmd.c      | 59 ++++++++++++++++++++--
 drivers/net/ethernet/mellanox/mlx5/core/en.h       |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c |  5 +-
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h |  4 +-
 .../ethernet/mellanox/mlx5/core/en_accel/ktls.c    |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  | 12 +++--
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c   | 12 ++---
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.h   |  7 ++-
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c    | 40 ++++++++++++---
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c    |  9 ++--
 drivers/net/ethernet/mellanox/mlx5/core/eq.c       |  3 ++
 drivers/net/ethernet/mellanox/mlx5/core/events.c   |  4 +-
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c  | 30 +++++++----
 .../net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c  |  4 +-
 drivers/net/ethernet/mellanox/mlx5/core/main.c     |  7 ++-
 include/linux/mlx5/driver.h                        | 16 ++++++
 16 files changed, 168 insertions(+), 48 deletions(-)

^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 01/13] net/mlx5: Add command entry handling completion
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 02/13] net/mlx5: Fix a race when moving command interface to events mode Saeed Mahameed
                   ` (12 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Moshe Shemesh, Eran Ben Elisha, Saeed Mahameed

From: Moshe Shemesh <moshe@mellanox.com>

When FW response to commands is very slow and all command entries in
use are waiting for completion we can have a race where commands can get
timeout before they get out of the queue and handled. Timeout
completion on uninitialized command will cause releasing command's
buffers before accessing it for initialization and then we will get NULL
pointer exception while trying access it. It may also cause releasing
buffers of another command since we may have timeout completion before
even allocating entry index for this command.
Add entry handling completion to avoid this race.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 14 ++++++++++++++
 include/linux/mlx5/driver.h                   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index cede5bdfd598..d695b75bc0af 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -861,6 +861,7 @@ static void cmd_work_handler(struct work_struct *work)
 	int alloc_ret;
 	int cmd_mode;
 
+	complete(&ent->handling);
 	sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem;
 	down(sem);
 	if (!ent->page_queue) {
@@ -978,6 +979,11 @@ static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent)
 	struct mlx5_cmd *cmd = &dev->cmd;
 	int err;
 
+	if (!wait_for_completion_timeout(&ent->handling, timeout) &&
+	    cancel_work_sync(&ent->work)) {
+		ent->ret = -ECANCELED;
+		goto out_err;
+	}
 	if (cmd->mode == CMD_MODE_POLLING || ent->polling) {
 		wait_for_completion(&ent->done);
 	} else if (!wait_for_completion_timeout(&ent->done, timeout)) {
@@ -985,12 +991,17 @@ static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent)
 		mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
 	}
 
+out_err:
 	err = ent->ret;
 
 	if (err == -ETIMEDOUT) {
 		mlx5_core_warn(dev, "%s(0x%x) timeout. Will cause a leak of a command resource\n",
 			       mlx5_command_str(msg_to_opcode(ent->in)),
 			       msg_to_opcode(ent->in));
+	} else if (err == -ECANCELED) {
+		mlx5_core_warn(dev, "%s(0x%x) canceled on out of queue timeout.\n",
+			       mlx5_command_str(msg_to_opcode(ent->in)),
+			       msg_to_opcode(ent->in));
 	}
 	mlx5_core_dbg(dev, "err %d, delivery status %s(%d)\n",
 		      err, deliv_status_to_str(ent->status), ent->status);
@@ -1026,6 +1037,7 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 	ent->token = token;
 	ent->polling = force_polling;
 
+	init_completion(&ent->handling);
 	if (!callback)
 		init_completion(&ent->done);
 
@@ -1045,6 +1057,8 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 	err = wait_func(dev, ent);
 	if (err == -ETIMEDOUT)
 		goto out;
+	if (err == -ECANCELED)
+		goto out_free;
 
 	ds = ent->ts2 - ent->ts1;
 	op = MLX5_GET(mbox_in, in->first.data, opcode);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 6f8f79ef829b..9b1f29f26c27 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -743,6 +743,7 @@ struct mlx5_cmd_work_ent {
 	struct delayed_work	cb_timeout_work;
 	void		       *context;
 	int			idx;
+	struct completion	handling;
 	struct completion	done;
 	struct mlx5_cmd        *cmd;
 	struct work_struct	work;
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 02/13] net/mlx5: Fix a race when moving command interface to events mode
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
  2020-05-23  0:40 ` [net 01/13] net/mlx5: Add command entry handling completion Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 03/13] net/mlx5: Avoid processing commands before cmdif is ready Saeed Mahameed
                   ` (11 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Eran Ben Elisha, Moshe Shemesh, Saeed Mahameed

From: Eran Ben Elisha <eranbe@mellanox.com>

After driver creates (via FW command) an EQ for commands, the driver will
be informed on new commands completion by EQE. However, due to a race in
driver's internal command mode metadata update, some new commands will
still be miss-handled by driver as if we are in polling mode. Such commands
can get two non forced completion, leading to already freed command entry
access.

CREATE_EQ command, that maps EQ to the command queue must be posted to the
command queue while it is empty and no other command should be posted.

Add SW mechanism that once the CREATE_EQ command is about to be executed,
all other commands will return error without being sent to the FW. Allow
sending other commands only after successfully changing the driver's
internal command mode metadata.
We can safely return error to all other commands while creating the command
EQ, as all other commands might be sent from the user/application during
driver load. Application can rerun them later after driver's load was
finished.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 35 ++++++++++++++++---
 drivers/net/ethernet/mellanox/mlx5/core/eq.c  |  3 ++
 include/linux/mlx5/driver.h                   |  6 ++++
 3 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index d695b75bc0af..2f3cafdc3b1f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -848,6 +848,14 @@ static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg);
 static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,
 			      struct mlx5_cmd_msg *msg);
 
+static bool opcode_allowed(struct mlx5_cmd *cmd, u16 opcode)
+{
+	if (cmd->allowed_opcode == CMD_ALLOWED_OPCODE_ALL)
+		return true;
+
+	return cmd->allowed_opcode == opcode;
+}
+
 static void cmd_work_handler(struct work_struct *work)
 {
 	struct mlx5_cmd_work_ent *ent = container_of(work, struct mlx5_cmd_work_ent, work);
@@ -914,7 +922,8 @@ static void cmd_work_handler(struct work_struct *work)
 
 	/* Skip sending command to fw if internal error */
 	if (pci_channel_offline(dev->pdev) ||
-	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
+	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR ||
+	    !opcode_allowed(&dev->cmd, ent->op)) {
 		u8 status = 0;
 		u32 drv_synd;
 
@@ -1405,6 +1414,22 @@ static void create_debugfs_files(struct mlx5_core_dev *dev)
 	mlx5_cmdif_debugfs_init(dev);
 }
 
+void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode)
+{
+	struct mlx5_cmd *cmd = &dev->cmd;
+	int i;
+
+	for (i = 0; i < cmd->max_reg_cmds; i++)
+		down(&cmd->sem);
+	down(&cmd->pages_sem);
+
+	cmd->allowed_opcode = opcode;
+
+	up(&cmd->pages_sem);
+	for (i = 0; i < cmd->max_reg_cmds; i++)
+		up(&cmd->sem);
+}
+
 static void mlx5_cmd_change_mod(struct mlx5_core_dev *dev, int mode)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
@@ -1681,12 +1706,13 @@ static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 	int err;
 	u8 status = 0;
 	u32 drv_synd;
+	u16 opcode;
 	u8 token;
 
+	opcode = MLX5_GET(mbox_in, in, opcode);
 	if (pci_channel_offline(dev->pdev) ||
-	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
-		u16 opcode = MLX5_GET(mbox_in, in, opcode);
-
+	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR ||
+	    !opcode_allowed(&dev->cmd, opcode)) {
 		err = mlx5_internal_err_ret_value(dev, opcode, &drv_synd, &status);
 		MLX5_SET(mbox_out, out, status, status);
 		MLX5_SET(mbox_out, out, syndrome, drv_synd);
@@ -1988,6 +2014,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 	mlx5_core_dbg(dev, "descriptor at dma 0x%llx\n", (unsigned long long)(cmd->dma));
 
 	cmd->mode = CMD_MODE_POLLING;
+	cmd->allowed_opcode = CMD_ALLOWED_OPCODE_ALL;
 
 	create_msg_cache(dev);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index cccea3a8eddd..ce6c621af043 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -611,11 +611,13 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
 		.nent = MLX5_NUM_CMD_EQE,
 		.mask[0] = 1ull << MLX5_EVENT_TYPE_CMD,
 	};
+	mlx5_cmd_allowed_opcode(dev, MLX5_CMD_OP_CREATE_EQ);
 	err = setup_async_eq(dev, &table->cmd_eq, &param, "cmd");
 	if (err)
 		goto err1;
 
 	mlx5_cmd_use_events(dev);
+	mlx5_cmd_allowed_opcode(dev, CMD_ALLOWED_OPCODE_ALL);
 
 	param = (struct mlx5_eq_param) {
 		.irq_index = 0,
@@ -645,6 +647,7 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
 	mlx5_cmd_use_polling(dev);
 	cleanup_async_eq(dev, &table->cmd_eq, "cmd");
 err1:
+	mlx5_cmd_allowed_opcode(dev, CMD_ALLOWED_OPCODE_ALL);
 	mlx5_eq_notifier_unregister(dev, &table->cq_err_nb);
 	return err;
 }
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 9b1f29f26c27..c03778c75dfa 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -284,6 +284,7 @@ struct mlx5_cmd {
 	struct semaphore sem;
 	struct semaphore pages_sem;
 	int	mode;
+	u16     allowed_opcode;
 	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
 	struct dma_pool *pool;
 	struct mlx5_cmd_debug dbg;
@@ -875,10 +876,15 @@ mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
 	return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
 }
 
+enum {
+	CMD_ALLOWED_OPCODE_ALL,
+};
+
 int mlx5_cmd_init(struct mlx5_core_dev *dev);
 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
+void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
 
 struct mlx5_async_ctx {
 	struct mlx5_core_dev *dev;
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 03/13] net/mlx5: Avoid processing commands before cmdif is ready
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
  2020-05-23  0:40 ` [net 01/13] net/mlx5: Add command entry handling completion Saeed Mahameed
  2020-05-23  0:40 ` [net 02/13] net/mlx5: Fix a race when moving command interface to events mode Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 04/13] net/mlx5e: Fix allowed tc redirect merged eswitch offload cases Saeed Mahameed
                   ` (10 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Eran Ben Elisha, Moshe Shemesh, Saeed Mahameed

From: Eran Ben Elisha <eranbe@mellanox.com>

When driver is reloading during recovery flow, it can't get new commands
till command interface is up again. Otherwise we may get to null pointer
trying to access non initialized command structures.

Add cmdif state to avoid processing commands while cmdif is not ready.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c  | 10 ++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/main.c |  4 ++++
 include/linux/mlx5/driver.h                    |  9 +++++++++
 3 files changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 2f3cafdc3b1f..7a77fe40af3a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -923,6 +923,7 @@ static void cmd_work_handler(struct work_struct *work)
 	/* Skip sending command to fw if internal error */
 	if (pci_channel_offline(dev->pdev) ||
 	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR ||
+	    cmd->state != MLX5_CMDIF_STATE_UP ||
 	    !opcode_allowed(&dev->cmd, ent->op)) {
 		u8 status = 0;
 		u32 drv_synd;
@@ -1712,6 +1713,7 @@ static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 	opcode = MLX5_GET(mbox_in, in, opcode);
 	if (pci_channel_offline(dev->pdev) ||
 	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR ||
+	    dev->cmd.state != MLX5_CMDIF_STATE_UP ||
 	    !opcode_allowed(&dev->cmd, opcode)) {
 		err = mlx5_internal_err_ret_value(dev, opcode, &drv_synd, &status);
 		MLX5_SET(mbox_out, out, status, status);
@@ -1977,6 +1979,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 		goto err_free_page;
 	}
 
+	cmd->state = MLX5_CMDIF_STATE_DOWN;
 	cmd->checksum_disabled = 1;
 	cmd->max_reg_cmds = (1 << cmd->log_sz) - 1;
 	cmd->bitmask = (1UL << cmd->max_reg_cmds) - 1;
@@ -2054,3 +2057,10 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev)
 	dma_pool_destroy(cmd->pool);
 }
 EXPORT_SYMBOL(mlx5_cmd_cleanup);
+
+void mlx5_cmd_set_state(struct mlx5_core_dev *dev,
+			enum mlx5_cmdif_state cmdif_state)
+{
+	dev->cmd.state = cmdif_state;
+}
+EXPORT_SYMBOL(mlx5_cmd_set_state);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 7af4210c1b96..a61e473db7e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -965,6 +965,8 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot)
 		goto err_cmd_cleanup;
 	}
 
+	mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP);
+
 	err = mlx5_core_enable_hca(dev, 0);
 	if (err) {
 		mlx5_core_err(dev, "enable hca failed\n");
@@ -1026,6 +1028,7 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot)
 err_disable_hca:
 	mlx5_core_disable_hca(dev, 0);
 err_cmd_cleanup:
+	mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
 	mlx5_cmd_cleanup(dev);
 
 	return err;
@@ -1043,6 +1046,7 @@ static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
 	}
 	mlx5_reclaim_startup_pages(dev);
 	mlx5_core_disable_hca(dev, 0);
+	mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
 	mlx5_cmd_cleanup(dev);
 
 	return 0;
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index c03778c75dfa..8397b6558dc7 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -213,6 +213,12 @@ enum mlx5_port_status {
 	MLX5_PORT_DOWN      = 2,
 };
 
+enum mlx5_cmdif_state {
+	MLX5_CMDIF_STATE_UNINITIALIZED,
+	MLX5_CMDIF_STATE_UP,
+	MLX5_CMDIF_STATE_DOWN,
+};
+
 struct mlx5_cmd_first {
 	__be32		data[4];
 };
@@ -258,6 +264,7 @@ struct mlx5_cmd_stats {
 struct mlx5_cmd {
 	struct mlx5_nb    nb;
 
+	enum mlx5_cmdif_state	state;
 	void	       *cmd_alloc_buf;
 	dma_addr_t	alloc_dma;
 	int		alloc_size;
@@ -882,6 +889,8 @@ enum {
 
 int mlx5_cmd_init(struct mlx5_core_dev *dev);
 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
+void mlx5_cmd_set_state(struct mlx5_core_dev *dev,
+			enum mlx5_cmdif_state cmdif_state);
 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 04/13] net/mlx5e: Fix allowed tc redirect merged eswitch offload cases
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (2 preceding siblings ...)
  2020-05-23  0:40 ` [net 03/13] net/mlx5: Avoid processing commands before cmdif is ready Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 05/13] net/mlx5e: kTLS, Destroy key object after destroying the TIS Saeed Mahameed
                   ` (9 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Maor Dickman, Roi Dayan, Saeed Mahameed

From: Maor Dickman <maord@mellanox.com>

After changing the parent_id to be the same for both NICs of same
The cited commit wrongly allow offload of tc redirect flows from
VF to uplink and vice versa when devcies are on different eswitch,
these cases aren't supported by HW.

Disallow the above offloads when devcies are on different eswitch
and VF LAG is not configured.

Fixes: f6dc1264f1c0 ("net/mlx5e: Disallow tc redirect offload cases we don't support")
Signed-off-by: Maor Dickman <maord@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en_rep.c  |  8 +---
 .../net/ethernet/mellanox/mlx5/core/en_rep.h  |  7 +++-
 .../net/ethernet/mellanox/mlx5/core/en_tc.c   | 40 +++++++++++++++----
 3 files changed, 41 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index f372e94948fd..cdecf4280e86 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1484,13 +1484,9 @@ bool mlx5e_eswitch_uplink_rep(struct net_device *netdev)
 	return netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep;
 }
 
-bool mlx5e_eswitch_rep(struct net_device *netdev)
+bool mlx5e_eswitch_vf_rep(struct net_device *netdev)
 {
-	if (netdev->netdev_ops == &mlx5e_netdev_ops_rep ||
-	    netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep)
-		return true;
-
-	return false;
+	return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
 }
 
 static void mlx5e_build_rep_params(struct net_device *netdev)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
index 6a2337900420..612b5cf0673d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
@@ -210,8 +210,13 @@ void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
 
 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
 
-bool mlx5e_eswitch_rep(struct net_device *netdev);
+bool mlx5e_eswitch_vf_rep(struct net_device *netdev);
 bool mlx5e_eswitch_uplink_rep(struct net_device *netdev);
+static inline bool mlx5e_eswitch_rep(struct net_device *netdev)
+{
+	return mlx5e_eswitch_vf_rep(netdev) ||
+	       mlx5e_eswitch_uplink_rep(netdev);
+}
 
 #else /* CONFIG_MLX5_ESWITCH */
 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index a574c588269a..5bcf95fcdd59 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3073,6 +3073,11 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
 	return true;
 }
 
+static bool same_port_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv)
+{
+	return priv->mdev == peer_priv->mdev;
+}
+
 static bool same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv)
 {
 	struct mlx5_core_dev *fmdev, *pmdev;
@@ -3291,7 +3296,7 @@ static inline int hash_encap_info(struct encap_key *key)
 }
 
 
-static bool is_merged_eswitch_dev(struct mlx5e_priv *priv,
+static bool is_merged_eswitch_vfs(struct mlx5e_priv *priv,
 				  struct net_device *peer_netdev)
 {
 	struct mlx5e_priv *peer_priv;
@@ -3299,13 +3304,11 @@ static bool is_merged_eswitch_dev(struct mlx5e_priv *priv,
 	peer_priv = netdev_priv(peer_netdev);
 
 	return (MLX5_CAP_ESW(priv->mdev, merged_eswitch) &&
-		mlx5e_eswitch_rep(priv->netdev) &&
-		mlx5e_eswitch_rep(peer_netdev) &&
+		mlx5e_eswitch_vf_rep(priv->netdev) &&
+		mlx5e_eswitch_vf_rep(peer_netdev) &&
 		same_hw_devs(priv, peer_priv));
 }
 
-
-
 bool mlx5e_encap_take(struct mlx5e_encap_entry *e)
 {
 	return refcount_inc_not_zero(&e->refcnt);
@@ -3575,14 +3578,37 @@ static int add_vlan_pop_action(struct mlx5e_priv *priv,
 	return err;
 }
 
+static bool same_hw_reps(struct mlx5e_priv *priv,
+			 struct net_device *peer_netdev)
+{
+	struct mlx5e_priv *peer_priv;
+
+	peer_priv = netdev_priv(peer_netdev);
+
+	return mlx5e_eswitch_rep(priv->netdev) &&
+	       mlx5e_eswitch_rep(peer_netdev) &&
+	       same_hw_devs(priv, peer_priv);
+}
+
+static bool is_lag_dev(struct mlx5e_priv *priv,
+		       struct net_device *peer_netdev)
+{
+	return ((mlx5_lag_is_sriov(priv->mdev) ||
+		 mlx5_lag_is_multipath(priv->mdev)) &&
+		 same_hw_reps(priv, peer_netdev));
+}
+
 bool mlx5e_is_valid_eswitch_fwd_dev(struct mlx5e_priv *priv,
 				    struct net_device *out_dev)
 {
-	if (is_merged_eswitch_dev(priv, out_dev))
+	if (is_merged_eswitch_vfs(priv, out_dev))
+		return true;
+
+	if (is_lag_dev(priv, out_dev))
 		return true;
 
 	return mlx5e_eswitch_rep(out_dev) &&
-	       same_hw_devs(priv, netdev_priv(out_dev));
+	       same_port_devs(priv, netdev_priv(out_dev));
 }
 
 static bool is_duplicated_output_device(struct net_device *dev,
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 05/13] net/mlx5e: kTLS, Destroy key object after destroying the TIS
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (3 preceding siblings ...)
  2020-05-23  0:40 ` [net 04/13] net/mlx5e: Fix allowed tc redirect merged eswitch offload cases Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 06/13] net/mlx5e: Fix inner tirs handling Saeed Mahameed
                   ` (8 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Tariq Toukan, Boris Pismenny, Saeed Mahameed

From: Tariq Toukan <tariqt@mellanox.com>

The TLS TIS object contains the dek/key ID.
By destroying the key first, the TIS would contain an invalid
non-existing key ID.
Reverse the destroy order, this also acheives the desired assymetry
between the destroy and the create flows.

Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
index 46725cd743a3..7d1985fa0d4f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -69,8 +69,8 @@ static void mlx5e_ktls_del(struct net_device *netdev,
 	struct mlx5e_ktls_offload_context_tx *tx_priv =
 		mlx5e_get_ktls_tx_priv_ctx(tls_ctx);
 
-	mlx5_ktls_destroy_key(priv->mdev, tx_priv->key_id);
 	mlx5e_destroy_tis(priv->mdev, tx_priv->tisn);
+	mlx5_ktls_destroy_key(priv->mdev, tx_priv->key_id);
 	kvfree(tx_priv);
 }
 
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 06/13] net/mlx5e: Fix inner tirs handling
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (4 preceding siblings ...)
  2020-05-23  0:40 ` [net 05/13] net/mlx5e: kTLS, Destroy key object after destroying the TIS Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 07/13] net/mlx5: Fix memory leak in mlx5_events_init Saeed Mahameed
                   ` (7 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Roi Dayan, Vlad Buslov, Saeed Mahameed

From: Roi Dayan <roid@mellanox.com>

In the cited commit inner_tirs argument was added to create and destroy
inner tirs, and no indication was added to mlx5e_modify_tirs_hash()
function. In order to have a consistent handling, use
inner_indir_tir[0].tirn in tirs destroy/modify function as an indication
to whether inner tirs are created.
Inner tirs are not created for representors and before this commit,
a call to mlx5e_modify_tirs_hash() was sending HW commands to
modify non-existent inner tirs.

Fixes: 46dc933cee82 ("net/mlx5e: Provide explicit directive if to create inner indirect tirs")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h         |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c    | 12 +++++++-----
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c     |  4 ++--
 .../net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c    |  4 ++--
 4 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 23701c0e36ec..59745402747b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -1121,7 +1121,7 @@ void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq);
 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
 
 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc);
-void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc);
+void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv);
 
 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index b314adf438da..c6b83042d431 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2717,7 +2717,8 @@ void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen)
 		mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in, inlen);
 	}
 
-	if (!mlx5e_tunnel_inner_ft_supported(priv->mdev))
+	/* Verify inner tirs resources allocated */
+	if (!priv->inner_indir_tir[0].tirn)
 		return;
 
 	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
@@ -3408,14 +3409,15 @@ int mlx5e_create_direct_tirs(struct mlx5e_priv *priv, struct mlx5e_tir *tirs)
 	return err;
 }
 
-void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc)
+void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv)
 {
 	int i;
 
 	for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
 		mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
 
-	if (!inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
+	/* Verify inner tirs resources allocated */
+	if (!priv->inner_indir_tir[0].tirn)
 		return;
 
 	for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
@@ -5123,7 +5125,7 @@ static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
 err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
 err_destroy_indirect_tirs:
-	mlx5e_destroy_indirect_tirs(priv, true);
+	mlx5e_destroy_indirect_tirs(priv);
 err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 err_destroy_indirect_rqts:
@@ -5142,7 +5144,7 @@ static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
 	mlx5e_destroy_direct_tirs(priv, priv->xsk_tir);
 	mlx5e_destroy_direct_rqts(priv, priv->xsk_tir);
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
-	mlx5e_destroy_indirect_tirs(priv, true);
+	mlx5e_destroy_indirect_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
 	mlx5e_close_drop_rq(&priv->drop_rq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index cdecf4280e86..4a8e0dfdc5f2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1743,7 +1743,7 @@ static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
 err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
 err_destroy_indirect_tirs:
-	mlx5e_destroy_indirect_tirs(priv, false);
+	mlx5e_destroy_indirect_tirs(priv);
 err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 err_destroy_indirect_rqts:
@@ -1761,7 +1761,7 @@ static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
 	mlx5e_destroy_rep_root_ft(priv);
 	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
-	mlx5e_destroy_indirect_tirs(priv, false);
+	mlx5e_destroy_indirect_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
 	mlx5e_close_drop_rq(&priv->drop_rq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 673aaa815f57..505cf6eeae25 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -396,7 +396,7 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
 err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
 err_destroy_indirect_tirs:
-	mlx5e_destroy_indirect_tirs(priv, true);
+	mlx5e_destroy_indirect_tirs(priv);
 err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 err_destroy_indirect_rqts:
@@ -412,7 +412,7 @@ static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
 {
 	mlx5i_destroy_flow_steering(priv);
 	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
-	mlx5e_destroy_indirect_tirs(priv, true);
+	mlx5e_destroy_indirect_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
 	mlx5e_close_drop_rq(&priv->drop_rq);
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 07/13] net/mlx5: Fix memory leak in mlx5_events_init
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (5 preceding siblings ...)
  2020-05-23  0:40 ` [net 06/13] net/mlx5e: Fix inner tirs handling Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 08/13] net/mlx5: Fix cleaning unmanaged flow tables Saeed Mahameed
                   ` (6 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Moshe Shemesh, Tariq Toukan, Saeed Mahameed

From: Moshe Shemesh <moshe@mellanox.com>

Fix memory leak in mlx5_events_init(), in case
create_single_thread_workqueue() fails, events
struct should be freed.

Fixes: 5d3c537f9070 ("net/mlx5: Handle event of power detection in the PCIE slot")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/events.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 8bcf3426b9c6..3ce17c3d7a00 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -346,8 +346,10 @@ int mlx5_events_init(struct mlx5_core_dev *dev)
 	events->dev = dev;
 	dev->priv.events = events;
 	events->wq = create_singlethread_workqueue("mlx5_events");
-	if (!events->wq)
+	if (!events->wq) {
+		kfree(events);
 		return -ENOMEM;
+	}
 	INIT_WORK(&events->pcie_core_work, mlx5_pcie_event);
 
 	return 0;
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 08/13] net/mlx5: Fix cleaning unmanaged flow tables
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (6 preceding siblings ...)
  2020-05-23  0:40 ` [net 07/13] net/mlx5: Fix memory leak in mlx5_events_init Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 09/13] net/mlx5: Don't maintain a case of del_sw_func being null Saeed Mahameed
                   ` (5 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Roi Dayan, Mark Bloch, Paul Blakey, Saeed Mahameed

From: Roi Dayan <roid@mellanox.com>

Unmanaged flow tables doesn't have a parent and tree_put_node()
assume there is always a parent if cleaning is needed. fix that.

Fixes: 5281a0c90919 ("net/mlx5: fs_core: Introduce unmanaged flow tables")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index d5defe09339a..8f62bfcf57af 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -344,14 +344,13 @@ static void tree_put_node(struct fs_node *node, bool locked)
 		if (node->del_hw_func)
 			node->del_hw_func(node);
 		if (parent_node) {
-			/* Only root namespace doesn't have parent and we just
-			 * need to free its node.
-			 */
 			down_write_ref_node(parent_node, locked);
 			list_del_init(&node->list);
 			if (node->del_sw_func)
 				node->del_sw_func(node);
 			up_write_ref_node(parent_node, locked);
+		} else if (node->del_sw_func) {
+			node->del_sw_func(node);
 		} else {
 			kfree(node);
 		}
@@ -468,8 +467,10 @@ static void del_sw_flow_table(struct fs_node *node)
 	fs_get_obj(ft, node);
 
 	rhltable_destroy(&ft->fgs_hash);
-	fs_get_obj(prio, ft->node.parent);
-	prio->num_ft--;
+	if (ft->node.parent) {
+		fs_get_obj(prio, ft->node.parent);
+		prio->num_ft--;
+	}
 	kfree(ft);
 }
 
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 09/13] net/mlx5: Don't maintain a case of del_sw_func being null
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (7 preceding siblings ...)
  2020-05-23  0:40 ` [net 08/13] net/mlx5: Fix cleaning unmanaged flow tables Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 10/13] net/mlx5: Annotate mutex destroy for root ns Saeed Mahameed
                   ` (4 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba
  Cc: netdev, Roi Dayan, Mark Bloch, Paul Blakey, Saeed Mahameed

From: Roi Dayan <roid@mellanox.com>

Add del_sw_func cb for root ns. Now there is no need to
maintain a case of del_sw_func being null when freeing the node.

Fixes: 2cc43b494a6c ("net/mlx5_core: Managing root flow table")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/fs_core.c   | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 8f62bfcf57af..02d0f94eaaad 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -346,14 +346,10 @@ static void tree_put_node(struct fs_node *node, bool locked)
 		if (parent_node) {
 			down_write_ref_node(parent_node, locked);
 			list_del_init(&node->list);
-			if (node->del_sw_func)
-				node->del_sw_func(node);
-			up_write_ref_node(parent_node, locked);
-		} else if (node->del_sw_func) {
-			node->del_sw_func(node);
-		} else {
-			kfree(node);
 		}
+		node->del_sw_func(node);
+		if (parent_node)
+			up_write_ref_node(parent_node, locked);
 		node = NULL;
 	}
 	if (!node && parent_node)
@@ -2352,6 +2348,11 @@ static int init_root_tree(struct mlx5_flow_steering *steering,
 	return 0;
 }
 
+static void del_sw_root_ns(struct fs_node *node)
+{
+	kfree(node);
+}
+
 static struct mlx5_flow_root_namespace
 *create_root_ns(struct mlx5_flow_steering *steering,
 		enum fs_flow_table_type table_type)
@@ -2378,7 +2379,7 @@ static struct mlx5_flow_root_namespace
 	ns = &root_ns->ns;
 	fs_init_namespace(ns);
 	mutex_init(&root_ns->chain_lock);
-	tree_init_node(&ns->node, NULL, NULL);
+	tree_init_node(&ns->node, NULL, del_sw_root_ns);
 	tree_add_node(&ns->node, NULL);
 
 	return root_ns;
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 10/13] net/mlx5: Annotate mutex destroy for root ns
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (8 preceding siblings ...)
  2020-05-23  0:40 ` [net 09/13] net/mlx5: Don't maintain a case of del_sw_func being null Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 11/13] net/mlx5e: Update netdev txq on completions during closure Saeed Mahameed
                   ` (3 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Roi Dayan, Mark Bloch, Saeed Mahameed

From: Roi Dayan <roid@mellanox.com>

Invoke mutex_destroy() to catch any errors.

Fixes: 2cc43b494a6c ("net/mlx5_core: Managing root flow table")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 02d0f94eaaad..9620c8650e13 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -2350,6 +2350,12 @@ static int init_root_tree(struct mlx5_flow_steering *steering,
 
 static void del_sw_root_ns(struct fs_node *node)
 {
+	struct mlx5_flow_root_namespace *root_ns;
+	struct mlx5_flow_namespace *ns;
+
+	fs_get_obj(ns, node);
+	root_ns = container_of(ns, struct mlx5_flow_root_namespace, ns);
+	mutex_destroy(&root_ns->chain_lock);
 	kfree(node);
 }
 
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 11/13] net/mlx5e: Update netdev txq on completions during closure
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (9 preceding siblings ...)
  2020-05-23  0:40 ` [net 10/13] net/mlx5: Annotate mutex destroy for root ns Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 12/13] net/mlx5e: CT: Correctly get flow rule Saeed Mahameed
                   ` (2 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Moshe Shemesh, Tariq Toukan, Saeed Mahameed

From: Moshe Shemesh <moshe@mellanox.com>

On sq closure when we free its descriptors, we should also update netdev
txq on completions which would not arrive. Otherwise if we reopen sqs
and attach them back, for example on fw fatal recovery flow, we may get
tx timeout.

Fixes: 29429f3300a3 ("net/mlx5e: Timeout if SQ doesn't flush during close")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index fd6b2a1898c5..119a5c6cc167 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -537,10 +537,9 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq)
 {
 	struct mlx5e_tx_wqe_info *wi;
+	u32 dma_fifo_cc, nbytes = 0;
+	u16 ci, sqcc, npkts = 0;
 	struct sk_buff *skb;
-	u32 dma_fifo_cc;
-	u16 sqcc;
-	u16 ci;
 	int i;
 
 	sqcc = sq->cc;
@@ -565,11 +564,15 @@ void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq)
 		}
 
 		dev_kfree_skb_any(skb);
+		npkts++;
+		nbytes += wi->num_bytes;
 		sqcc += wi->num_wqebbs;
 	}
 
 	sq->dma_fifo_cc = dma_fifo_cc;
 	sq->cc = sqcc;
+
+	netdev_tx_completed_queue(sq->txq, npkts, nbytes);
 }
 
 #ifdef CONFIG_MLX5_CORE_IPOIB
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 12/13] net/mlx5e: CT: Correctly get flow rule
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (10 preceding siblings ...)
  2020-05-23  0:40 ` [net 11/13] net/mlx5e: Update netdev txq on completions during closure Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23  0:40 ` [net 13/13] net/mlx5: Fix error flow in case of function_setup failure Saeed Mahameed
  2020-05-23 23:47 ` [pull request][net 00/13] mlx5 fixes 2020-05-22 David Miller
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Roi Dayan, Oz Shlomo, Saeed Mahameed

From: Roi Dayan <roid@mellanox.com>

The correct way is to us the flow_cls_offload_flow_rule() wrapper
instead of f->rule directly.

Fixes: 4c3844d9e97e ("net/mlx5e: CT: Introduce connection tracking")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 5 +++--
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
index a172c5e39710..4eb305af0106 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
@@ -699,6 +699,7 @@ mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
 		       struct netlink_ext_ack *extack)
 {
 	struct mlx5_tc_ct_priv *ct_priv = mlx5_tc_ct_get_ct_priv(priv);
+	struct flow_rule *rule = flow_cls_offload_flow_rule(f);
 	struct flow_dissector_key_ct *mask, *key;
 	bool trk, est, untrk, unest, new;
 	u32 ctstate = 0, ctstate_mask = 0;
@@ -706,7 +707,7 @@ mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
 	u16 ct_state, ct_state_mask;
 	struct flow_match_ct match;
 
-	if (!flow_rule_match_key(f->rule, FLOW_DISSECTOR_KEY_CT))
+	if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CT))
 		return 0;
 
 	if (!ct_priv) {
@@ -715,7 +716,7 @@ mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
 		return -EOPNOTSUPP;
 	}
 
-	flow_rule_match_ct(f->rule, &match);
+	flow_rule_match_ct(rule, &match);
 
 	key = match.key;
 	mask = match.mask;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
index 091d305b633e..626f6c04882e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
@@ -130,7 +130,9 @@ mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
 		       struct flow_cls_offload *f,
 		       struct netlink_ext_ack *extack)
 {
-	if (!flow_rule_match_key(f->rule, FLOW_DISSECTOR_KEY_CT))
+	struct flow_rule *rule = flow_cls_offload_flow_rule(f);
+
+	if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CT))
 		return 0;
 
 	NL_SET_ERR_MSG_MOD(extack, "mlx5 tc ct offload isn't enabled.");
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* [net 13/13] net/mlx5: Fix error flow in case of function_setup failure
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (11 preceding siblings ...)
  2020-05-23  0:40 ` [net 12/13] net/mlx5e: CT: Correctly get flow rule Saeed Mahameed
@ 2020-05-23  0:40 ` Saeed Mahameed
  2020-05-23 23:47 ` [pull request][net 00/13] mlx5 fixes 2020-05-22 David Miller
  13 siblings, 0 replies; 15+ messages in thread
From: Saeed Mahameed @ 2020-05-23  0:40 UTC (permalink / raw)
  To: David S. Miller, kuba; +Cc: netdev, Shay Drory, Moshe Shemesh, Saeed Mahameed

From: Shay Drory <shayd@mellanox.com>

Currently, if an error occurred during mlx5_function_setup(), we
keep dev->state as DEVICE_STATE_UP.
Fixing it by adding a goto label.

Fixes: e161105e58da ("net/mlx5: Function setup/teardown procedures")
Signed-off-by: Shay Drory <shayd@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index a61e473db7e1..c1618b818f3a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1195,7 +1195,7 @@ int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
 
 	err = mlx5_function_setup(dev, boot);
 	if (err)
-		goto out;
+		goto err_function;
 
 	if (boot) {
 		err = mlx5_init_once(dev);
@@ -1233,6 +1233,7 @@ int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
 		mlx5_cleanup_once(dev);
 function_teardown:
 	mlx5_function_teardown(dev, boot);
+err_function:
 	dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
 	mutex_unlock(&dev->intf_state_mutex);
 
-- 
2.25.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [pull request][net 00/13] mlx5 fixes 2020-05-22
  2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
                   ` (12 preceding siblings ...)
  2020-05-23  0:40 ` [net 13/13] net/mlx5: Fix error flow in case of function_setup failure Saeed Mahameed
@ 2020-05-23 23:47 ` David Miller
  13 siblings, 0 replies; 15+ messages in thread
From: David Miller @ 2020-05-23 23:47 UTC (permalink / raw)
  To: saeedm; +Cc: kuba, netdev

From: Saeed Mahameed <saeedm@mellanox.com>
Date: Fri, 22 May 2020 17:40:36 -0700

> This series introduces some fixes to mlx5 driver.
> 
> Please pull and let me know if there is any problem.

Pulled.

> For -stable v4.13
>    ('net/mlx5: Add command entry handling completion')
> 
> For -stable v5.2
>    ('net/mlx5: Fix error flow in case of function_setup failure')
>    ('net/mlx5: Fix memory leak in mlx5_events_init')
> 
> For -stable v5.3
>    ('net/mlx5e: Update netdev txq on completions during closure')
>    ('net/mlx5e: kTLS, Destroy key object after destroying the TIS')
>    ('net/mlx5e: Fix inner tirs handling')
> 
> For -stable v5.6
>    ('net/mlx5: Fix cleaning unmanaged flow tables')
>    ('net/mlx5: Fix a race when moving command interface to events mode')

Queued up, thanks.

^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, back to index

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-23  0:40 [pull request][net 00/13] mlx5 fixes 2020-05-22 Saeed Mahameed
2020-05-23  0:40 ` [net 01/13] net/mlx5: Add command entry handling completion Saeed Mahameed
2020-05-23  0:40 ` [net 02/13] net/mlx5: Fix a race when moving command interface to events mode Saeed Mahameed
2020-05-23  0:40 ` [net 03/13] net/mlx5: Avoid processing commands before cmdif is ready Saeed Mahameed
2020-05-23  0:40 ` [net 04/13] net/mlx5e: Fix allowed tc redirect merged eswitch offload cases Saeed Mahameed
2020-05-23  0:40 ` [net 05/13] net/mlx5e: kTLS, Destroy key object after destroying the TIS Saeed Mahameed
2020-05-23  0:40 ` [net 06/13] net/mlx5e: Fix inner tirs handling Saeed Mahameed
2020-05-23  0:40 ` [net 07/13] net/mlx5: Fix memory leak in mlx5_events_init Saeed Mahameed
2020-05-23  0:40 ` [net 08/13] net/mlx5: Fix cleaning unmanaged flow tables Saeed Mahameed
2020-05-23  0:40 ` [net 09/13] net/mlx5: Don't maintain a case of del_sw_func being null Saeed Mahameed
2020-05-23  0:40 ` [net 10/13] net/mlx5: Annotate mutex destroy for root ns Saeed Mahameed
2020-05-23  0:40 ` [net 11/13] net/mlx5e: Update netdev txq on completions during closure Saeed Mahameed
2020-05-23  0:40 ` [net 12/13] net/mlx5e: CT: Correctly get flow rule Saeed Mahameed
2020-05-23  0:40 ` [net 13/13] net/mlx5: Fix error flow in case of function_setup failure Saeed Mahameed
2020-05-23 23:47 ` [pull request][net 00/13] mlx5 fixes 2020-05-22 David Miller

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